Fire-extinguisher-bottle closure.



y s. L. WDTTRING. lFIRE EXTINGUISHER BOTTLE GLOSURE. AIPLIUATION FILED SERT. 10,1908.

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SYLVANUS L. WOTTRING, OF PROSPECT, OHIO, ASSIGNOR TO WOTTRING & SUTPHEN COMPANY, OF PROSPECT, OHIO, A FIRM.

FIRE-EXTINGUISHER-BOTTLE CLOSURE.

Patented June 8, 1909.

Serial No. 452,390.

To all whom it may concern:

Be it known that I, SYLvANUs L. Worr- RING, a citizen of the United States, residing at Prospect, in the county of Marion and State of Ohio, have invented certain new and useful Improvements in Fire-Extinguisher- Bottle Closures, of which the following is a specification.

My invention relates to closures for chemical fire extinguisher bottles of that class in which a bottle containing acid is mounted in the upper portion of a tank containing chemicals in solution, the acid and solution when combined, producing a fire extinguishing gas and mixture.

The objects of my invention are to provide a cap for closing the mouth of the bottle neck, which will readily drop from the bottle when the latter is inverted or sufficiently tipped and which cap is provided with means for preventing the acid contained in the bottle from rising in the bottle neck, raising the cap off its seat, and permitting a portion of the acid to flow downward into the tank, as a result of the splashing of the acid in the bottle due to jar of the tank, and to produce other improvements the details of which will be more fully pointed out hereinafter. These objects I accomplish in the manner illustrated in the accompanying drawing, in which:

Figure 1 is a central vertical section of the upper neck portion of a fire extinguisher bottle having my improved closure, Fig. 2 is a transverse section of the same on line of Fig. 1, Fig. 3 is a vertical section on a ree duced scale of a modified form of cap or closure, and, Fig. 4 is a similar view illustrating a second modification in the construction of said cap.

Similar numerals refer to similar parts throughout the several views.

1 represents the vertical neck of a fire extinguisher bottle and 2 the closure cap thereof. This cap, which is preferably of metal and which is adapted, as shown, to bear removably upon the end of the bottle neck and to incase the latter, has its cylindrical wall provided with a flaring termination indicated at 2a which contacts with the shoulder 18L formed by the junction of the bottle body and the reduced neck thereof. Formed with the bottle has been found to result in a sufficient lifting of the cap or closure, to permit a portion of the acid to escape from the bottle neck and mingle with the solution contained in the tank. By employing the depending member 3 in connection with the cap 2, it is obvious that such slight space as may exist between said member and the inner surface of the bottle neck due to the fact that the depending member fits loosely within said neck, will not be sufficient to permit the rise of the acid through splashing in the bottle in sufiicient quantities to raise the cap off its seat. It will also be observed that by the employment of the member 3, additional weight is imparted to the cap, thereby offering an increased resistance to the splashing li uid.

In Fig. 3 of t e drawing, I have shown a modified form of cap, in which the depending member which is indicated at 3at in said figure, is of considerably less diameter than the bottle neck, except at its lower end where it is formed fiaring as indicated at 3b, said flaring portion being adapted to contact with the inner surface of the bottle neck and prevent the rise of the acid.

In Fig. 4 of the drawing, I have shown a second modification which differs from the other constructions shown only in the fact that the depending member, which in said figure is indicated at 3C, is in the nature of a comparatively slender solid body having a disk-like termination 3d between the periphery of which and the inner surface of the side wall of the cap, the neck of the bottle passes.

It is obvious that either of the three forms shown would serve the purpose for which my invention is intended.

What I claim, is:

The combination with a iire extinguisher bottle, of a loose cap maintained in position upon said bottle by gravity only, said cap In testimony whereof I a'llx iny signature comprising an outer portion which extends in presence of two Witnesses. down around the neck of the bottle for a con- T if T T a y siderable distance and a central portion S LX AB Us L' Vl OTrl hub' 5 which extends down inside the neck a con- Witnesses:

siderable distance7 said central portion liav- MARTIN M. Morin,

ing an enlarged flaring loWer end. OAKEY F. MILLIGAN. 

